Once upon a time the rainbow birds controlled the forest. The other birds did not like how they controlled the forest. The other birds planned to fight the birds to end their ruling.
All the birds that did not like the rainbow birds got together to end their ruling. The fighting was about to begin.
They fought the rainbow birds. The fighting was so bad that some of the rainbow birds fled to the river and so did the near by animals. The birds would not stop till they killed all the rainbow birds so they also went to the river.
They went to the river to find the rainbow birds and they started looking for the rainbow birds. They found some of them and started fighting again.
When they finally calmed down they looked around and saw all the damage they caused and the animals they harmed. They felt horrible for what they have done to the animals near by and they hid in the trees and caves.
That's what happened here years ago. Your problems should never be solved with violence it will lead to horrible thing for you and the people around you.